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EVALUATION BOARD SOFTWARE

SOFTWARE DESCRIPTION

The AD7793 evaluation board is shipped with a CD containing software that can be installed onto a standard PC to control the AD7793. The software communicates with the AD7793 through the USB cable, which accompanies the board. The software allows you to configure the AD7793 and to read conversion data from the AD7793. Data can be read from the AD7793 and displayed or stored for later analysis. For further information, see the AD7793 data sheet available from Analog Devices.

INSTALLATING THE SOFTWARE Use the following steps to install the software:

  • 1.

    Start Windows® and insert the CD.

  • 2.

    The installation software should launch automatically. If it does not, use Windows Explorer to locate the setup.exe file on the CD. Double-click this file to start the installation procedure.

  • 3.

    At the prompt, select a destination directory, which is C:\Program Files\Analog Devices\AD7793 by default.

EVAL-AD7793

  • 4.

    Once the directory is selected, the installation procedure copies the files into the relevant directories on the hard drive. The installation program creates a program group called Analog Devices with a subgroup AD7793 in the Start menu of the taskbar.

  • 5.

    Once the installation procedure is complete, double-click on the AD7793 icon to start the program.

USING THE SOFTWARE

Figure 3 shows the main window that is displayed when the program starts. The Main Window section briefly describe the various menu and button options in the main window. The Registers Window section, Other Registers Window section, and Temp Demo Window section describes the most commonly used evaluation software windows.

The data read can be exported to other packages, such as MathCAD™ or Microsoft® Excel, for further analysis.

During power-up, the AD7793 evaluation board software confi- gures the device to have a gain of 64, the internal reference is selected, the AIN1(−)/AIN1(−) channel is selected, the bias voltage is enabled on AIN1(−), and, the update rate is set to 16.7 Hz.

07580-003

Figure 3. AD7793 Evaluation Software Main Window

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